Furnace for burning liquid fuels and pulverulous coal



H. HORIUCHI.

FURNACE FOR BURNING L Patented Sept. 13, 19 21.

UNITED; STATES PATENT i OFFICE HIBOSUKE HORIUGHI, O]? TAIHOKU-GHO, JAPAN FURNACE FOR BURNING LIQUID FUELS AND "PULVERULO'US QUAIL.

Application filed my '21,

.7 o ull w from, it may canoe/m a, furnace wherein maximum limiting ellispecifically described and claimed oucl illusciency of liquid and pulverous fuels is obtained owing to the maximum amount of travel of the fuel efii'ected within the combustion chamber during the combustion A further object of the invention resides in the novel arrangement and grouping of the combined air and fuel pipes with respect to the cylindrical combustion chamber by which the maximum fuel burning copecity. is obtained, thereby enhancing the heating efiiciency of the furnace.

A. still further object resides in the provision of an expansion chamber connnuuieating with the comhustion chamber and having it series of beilles arranged, therein to arrest the rotery movement of the prott nets of combustion to cause them to travel in it direct path for action upon the water tubesor other apparatus for receiving the heat.

A. still further object is the provision in a furnace of they pulverous and liquid. burulug type of a grate for utilization in burning it coarser grade of fuel than that introduced by the combined air and fuel pipe i With these and other objects in View the invention consists of the novel features of construction which will be hereinofter more truted in the accompanying drawing in which: p I H Figure 1 1s a longitudinal sectional vle through. the improved furnace.

Fig 2 is a vertical transverse sectional view taken. through the combustion chamber.

Fig. 3 is a transverse sectional view of the furnace through. the expansion chamber.

Referring to the drewii'ig in detail the numeral 1 indicates the combustion chzunl' ei' of the improved. vfurnace which. is substentiolly circular in cross section and com. inunicetes through ii iii ision Well 8 with the expansion chemberfi, the lottco being preferably of considerably greater size than of which is inclicetedin Fig. it end v chamber 1 is formed by e grate ti ues tpeiflcetien of Letters en Patenteid Sept. 13, 1921' 1920. Serial. No. MEAN.

the combustion chamber L A plurality of combined air {Ultl liquid. or pulverous fuel supply pee 2 are connected with the combustion chamber 1 ct various points circumfcreutiitlly of the letter entl, :ie uuggestcd in. Fig; arranged substantially igouticl to the circular Well of the chamber l. The

pipes 12 :ire t'll'l'fl-IlgBCl in groups or lmnltsp pipes of each group or bank hoino; spaced apart in the directions of the longitudinal of the comluistion chamber 1 so as to effect a uniform.distribution of air and fuel throughout the entire length of the coi'obus tion chamber during the operation of the furnace. c The several pipes ere connected in groups or series with mixing chomhers, one (l es i gneted )serl fuel by the numeral 3. Angulerly (ii and air supply pipes 4 and. h r ure also extended into ouch mi: 3, the fuel ciu'iply pipe Al hein with :1 suitable :luel supplying i shown.) and on oil supply p' J ii i 3 nected with u, blower (not hown) or device for producing n click of oii' through the eir pipe 5..

The lower portion oi the ctuubustion ed to receive and support it p "l uel not suitable for introduction- 1 combustion chamber through the pipesil whereby such fuel may be burned simultaneously with that introduced thrcugh the pipee lielow the grate (1, the furnace is p ltlQl'l with on ash-pit 7.

As shown in Fig. 3, the expansion chem her 8 of 1101r1-f2lTCUlan form coil is provided in its rem. well withon outlet ll. in which ch 212 n her 3 a series of vertical and spaced bullies 12 are mixing chamber 3 of each group of pipes 2 pcctiuely,

the fuel. 3

the expansion clnnnhcr 8, the products of.

through e 'l'nel supply pipes 4 and, being Lie hi? i 'ning fr: m the discharge ii air supply pipe 5 is'conducted ahe pipes 2 infio the combustion 1. Ewing to the position of the cnls of the pipes 2 with respect caught by end of ti throng c" d'lli'ib ilischzir to the CMCUIHL" Willi ojl the combustion chamber h the incoming air and fuel are caused to Whirl in :1 ciic iar path within the coinhns ion channbeg and trziveling spirally'the ym. oi' c nnhnsiion enter the expansion.

combustion pass between the bullies 12 which vtcnil (d aries-i their circular and Spiral movemen's and (T51R25? them to travel direct to the Water inl. 13-01 oft-he apparatus.

seoyzw Aim, :1 pin-- rality of combined oi and. incl pipe: coin-- inunlcating Wli'l). the coinhnstnni clnnnhoi' y movement and arranged to produce I'(Ji l of the incoming fuel. and. r 1* within alln: chamber, an expansion chnnihcr oi" :inhnt tially elliptical form in c1:o section 1 Innnicnting with the coznhnsi n chanih i :1 icstrictcd p; s n and hiring; oil area in cl'o' ss sc lion than. Un ((1111, chamber, snnl expansion (illlll'liW-I hm'in r an outlet, and n plurulii'y o1" n-wl ll hnfllcs arranged to aim the whim inov ment of the iii-winch; oi crnnhnnlioi: innniny from the expansion chamber.

In testimony whci'coi' l hnw :iliizml my signature in PXQSPHCP of two WlYUKFF HIROEBUHE llill fiillll llll Witnesses RYOZEN I'LOSUX, CHUHEI A'ESUO.

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